Owens Corning ProArmor® Synthetic Roofing Underlayment 42" x 286' (1,000 sq. ft.)

Owens Corning® ProArmor® synthetic roof underlayment is strong, durable, and repels water. It's also lighter and easier to install. Our exclusive fusion back coating technology paired with the industrial nonwoven surface provides excellent walking conditions during shingle application even on steeply pitched roofs.